Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (41): 6171-6176.doi: 10.3969/j.issn.2095-4344.2016.41.014

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Adipose-derived mesenchymal stem cell transplantation for type 1 diabetes in a rat model

Liu Xiao-hui   

  1. Department of Endocrinology, Tianjin Fourth Central Hospital, Tianjin 300140, China
  • Revised:2016-08-08 Online:2016-10-07 Published:2016-10-07
  • About author:Liu Xiao-hui, Master, Attending physician, Department of Endocrinology, Tianjin Fourth Central Hospital, Tianjin 300140, China

Abstract:

BACKGROUND: Stem cell transplantation is a promising treatment for type 1 diabetes mellitus. Adipose-derived mesenchymal stem cells have become another hotspot following bone marrow mesenchymal stem cells.
OBJECTIVE: To investigate the therapeutic effect of adipose-derived mesenchymal stem cell transplantation on type 1 diabetes in a rat model.
METHODS: Forty-five Sprague-Dawley rats were randomized into normal, model and cell transplantation. Animal model of type 1 diabetes was made in the latter two groups through intraperitoneal injection of streptozotocin. Seven days after modeling, rats in the three groups were given intraperitoneal injection of normal saline, serum-free DMEM or adipose-derived mesenchymal stem cell suspension, respectively. Two weeks after injection, body mass, blood glucose level, insulin secretion and PDX-1 mRNA in the pancreatic tissue of rats were monitored and detected in the three groups.
RESULTS AND CONCLUSION: After modeling, the body mass of rats were lowered, and increased gradually in the cell transplantation group at 2 weeks after cell transplantation, but it was still decreased in the model group. Compared with the normal group, the fasting blood glucose level was significantly higher in the model group (P < 0.05), but it was reduced significantly after cell transplantation (P < 0.05). Compared with the normal group, the insulin level was reduced significantly in the model group (P < 0.05), but it was increased significantly after cell transplantation (P < 0.05). Highest and lowest PDX-1 mRNA expressions were obtained in the normal and model groups, respectively; and there was a significant difference between groups (P < 0.05). All these findings show that adipose-derived mesenchymal stem cell transplantation relieves hyperglycemia in rats by promoting the expression of PDX-1 in the rat pancreatic tissue.

 

 

Key words: Adipose Tissue, Mesenchymal Stem Cell Transplantation, Diabetes Mellitus, Type 1, Tissue Engineering

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